This is more of a sealed AIO concept. When I first booted it I did get an air pocket in the head unit, but have since eliminated it and topped off the res again. Temperatures across the cores don't indicate that there is or has been any problems so far.

Also if it were an issue, those with pump res combo's mounted to the floor of their chassis would have complained a lot more, as when I had a 655/XSPC res combo on the floor of my chassis. No issues there either.

I guess so. I see that complaint sometimes in "the mod" thread. AIOs seem to have a lot of gurgling issues in general. It's been awhile now and my H110 still makes a weird gurgle noise, but it's been getting less and less frequent at least.

I challenge anyone to present a more ghetto setup than this:
A Pentium D 960, Gigabyte EP45-UD3R, 1GB RAM, an 8600GT, and the original ThermalCrap Pisswater 760i. There wasn't enough coolant in the Pisswater, so it's running ~50/50 on the glycol and water. I only have the AMD mounting bracket for it, so it's currently being held down on top of the CPU with 3 HDDs.

I challenge anyone to present a more ghetto setup than this:http://i.imgur.com/Gv4et6r.jpg
A Pentium D 960, Gigabyte EP45-UD3R, 1GB RAM, an 8600GT, and the original ThermalCrap Pisswater 760i. There wasn't enough coolant in the Pisswater, so it's running ~50/50 on the glycol and water. I only have the AMD mounting bracket for it, so it's currently being held down on top of the CPU with 3 HDDs.